Coffee percolator



. A. N. WHITE COFFEE PERCOLATOR Filed Feb. 12. 1923 2 Sheets-Sheet 2 :1 I" v Il /11112:;

Patented Sept-16, 1924.

- 1 UNITED STATES; PATENT-1' OF I E-- mam) 11. warm, or LOS ANGELES, CALIFORNIA.

- COFFEE TEBCOLATO'R.

Application filed February 12, 1923. Serial 1T0. 618,464.

To all whom it may concern."

Be it known that I, ALFRED N. WHITE, a citizen ofthe United States, residing at Los Angeles, county of'Los Angeles, State of California, have invented new and useful Improvements in Coffee Percolators, of which the following is a specification.

It is the object of this invention to provide a coffee percolator in which dry cofi'ee is'automatically supplied to the coffee bag, in a quantity determined by the amount of water percolating through the bag, the supply of water being governed by the supply of percolated coffee in the apparatus.

By this arrangement as cofi'ee is withdrawn from the percolator, the drycofi'ee' and the water are automatically replenished in the correct proportion to make the coffee,

and maintain a constant supply thereof.

It is a further object of the invention to provide a pumping means operated by v the flow of water to the coffee bag, and adapted to repour the percolated coffee through the coffee grounds.

The invention will be readily understood from the following description of the ac companying drawings, in which Fig. 1,is a perspective view'of a perco lator constructed in accordance withthe invention.

Fig. 2 is a vertical section through the percolator.

Fig. 3 is a top'plan view with the cover and thecoflee hopper removed.

Fig. 4 is a detail elevation of the float mechanism. Fig. 5 is a vertical section through the valve for the water pipe.

Fig. 6 isa transverse section through the water coil.

Fig. 7 isa fragmentary side elevation of the same partly broken away.

The percolator comprises an outer shell 1, forming percolating receptacle which may be a usual 'ar 3.

J A heating means shown as a gas burner 4 having pilot light 5, is positioned below shell 1, and a coil 6 for heating water, is positioned above the burner and below the shell, the coil being supplied with water under pressure throug a pipe 7 connected to a suitable main. A ermostatic valve 8 a water chamber supplied through funnel 2, and adapted to receive a.

regulates the flow of gas tothe burner in accordance with the temperature of the water in pipe 7.

A cofi'ee conduit 9 extends from the base of j ar' 3 through the shell 1 and terminates in-a faucetlO, and a pipe 11 for supplying hot water extends from coil 6 through shell 1 and terminates in a faucet 12. A usual gauge glass 13 is connected to faucet 10, and

a gauge glass 13 communicates with water chamber 1.

A coflee bag 14 is removably supported over the top of jar 3, and a hopper for dry coffee is adapted to discharge into said cofi'ee bag, an annular guard 15 being received in the-upper portion of the coffee bag for preventing splashing, and providing for passage of dry coffee and water through the central opening in the guard.

The hopperfor dry coffee is shown as a glass jar 16 having a tapering discharge opening 17 at the base thereof and above the cofi'e'e bag. An inclined baflie 18 ispositioned beneath the discharge opening, so asto receive the coffee from jar 16 and direct the same into the coffee bag. The jar 16 is supported in a bracket 19 carried by shell 1, and the cover 20 for the percolator, is a split construction adapted to be received around the lower portion of jar 16. A valvular control'is provided for discharge opening 17, and comprises a tube 21 in hopper 16, having a valve disc 22 at its lower end, and a flange 23 at its upper end, with a nut 24 received on said tube and engaging the flange 23. A rod 25 extends through the tube, and depends therefrom through an opening in baflie 18, said rod A spider 30 is 'journaled in a bracket 31 below hopper 16 and bafie- 18, and above 'jar 3'and the coffee bag, the parts being so arranged thatthe periphery of the spider is in vertical alinement with roller 26. I

A vertical flange 32 is provided at the periphery of spider 30, the upper edge of said flange forming a plurality of circumferentiallyspaced cams 33 adapted to suecessivel engage roller 26 upon rotation of the 'spi er, so as to elevate the rod 25- and tube 21 a ainst thetension of s ring 29, and thereb a ternat'ely-open and cl The egreeof opening. movement of the valve may be adjusted by turning nut 24, in order to regulate the discharge of coflee,

as controlled by the rotation of the spider.

Spider 30 is rotated by the flow of hot water from coil 6 to the cofl'ee bag. As an instance of this arrangement, a pipe 34 extends upwardly from coil 6 through jar 3 and outside of the coflee bag, the upper end of said pipe. communicating tangentially with a coil 35 which is concentric with, and positioned below spider 30. A pipe 36 leads from the opgosite side of coil 35 and opens into the "co co ba alongside of the coflee discharge formed y 'baflle 18. It will thus be seen that water from" pipe 34 will circulate through coil 35 in one direction, and will then be discharged into the codes bag through pipe 36.

I The top of coil 35 is provided with an annular slot 37, and the lower edge of flange 32 extends into said slot, with. a strip 38 received on said flange and resting upon the coil. Aplurality of impingement elements 39 are fixed upon theflange within the coil, for contact of the water against the impingement elements, as the water circulates through the coil. lit will thus be seen that the flow of water will rotate spider 30 and alternately open and close valve 22, for discharge oil a quantity-of dry cofl'ee onto bafie 18 and thence into bag 14, said discharge of coflee bein proportional to the amount of water supp ied to the. coffee ba The flow of water through coi 35 and into i the coflee bag is controlled by the amount of percolated coflee in jar 3, so that when the coffee in'said jar has been withdrawn to a predeterminedlow level, additional water and the required amount of dry coflee will i be discharged into the codes bag, for making additional cofliee; and maintainingthe supply in jar 3.

As in instance of this arrangement, a valve casing 40 is provided in .pipe 34, and a valve ll-normally closedby a spring 42, is mount ed in said valve casing. A cam 43, upon.

"one end of a lever,; 44,- is adapted to'engagc a stud upon the stem of valve 41,when the-.0 posite end of the lever is swung downwar in order to open the valve against the action of its spring. The cam is arranged so as to maintain the valve in open position,

until the lever is swung in the o posite direction, said opposite swingin -o the, lever disengaging the mitting the spring maintain the same in closed position.

cam from stu 45 and per- 42 to return the valve and The movement of lever 44 as. thusdeose valve 22.

neoaeoe scribed, is controlled by a float mechanism mounted in jar 3. The float mechanism comprises spaced spherical floats 48 fixed in a frame which is guided in its vertical movement by arms 49 carried by ar 3'.

The frame for the floats include cross bars 50 and 51 in vertically spaced relation above and below the operating end of lever 44, and

in aline'ment with said lever end. It will floatmechanism rising with the cofieelevel will cause rod 51 to abut against the lever '44 when a predetermined capacity is reached,

in order to swing the lever upwardly and thereby permit the valve 41 to close and shut 0d the flow of water through pipe 34.

By the construction thus far described, hot water will 'ercolate once through the coffee in bag 14, ut means are also provided for repouring the percolated cofl'ee through the codes grounds.

For the purpose a pipe54 is mounted in jar 3 and is open at its lower end 'to the percolated codes in said jar, The pipe extends upwardly and communicates tangentially with a coil 55 concentricElly positioned beneathcoil 35. A pipe 56 eads from the opposite side of coil 55 and fee bag 14.

The top nular slot 57, and a vertical annular flange 58 carried by spider 30, extends into said slot, with a strip 59 received on said flange and resting on t tonsfiO are-fixed upon the flange within the coil, so that when spider 30 is rotated as previously described, said pistons will rotate in coil 55 and thereby drawpercolated coflee through pipe 54 and coil 55, for discharge through pipe 56 into the coflee bag. percolated coflIt will thus be seen that the fee is automatically repouredv durin operation of the coffee making mechanism, the said mechanism automatically maintaining a desired quantity of cofl'ee in the jar 3, with the dry coflee and hot water for making the coflee automatically supplied in the desired pro ortion, which may e regulated .by adjustmg the nut 24. Y

In orderto regulate the flow or water through coil 6 and pipe 34, so as to insure proper heating of all ofthe water, a flow regulating valve 62 is preferably positioned in pipe34 below valve41, said valve having a manually operated adjusting means 63.

"It will be a parent that various changes may be made in the c nstruction, combina- 'of coil 55 is provided with an antill pens into the cofe coil..- A plurality of pisltlll tion, and arrangement of parts as thus described, without departing from thespirit of theinvention.

What is claimed is: v 1. A percolator havin a container, adapted for percolation of hquid therethroufh, means for supplying a liquid, means for ischarging materlal into said container, and

. mea s forcontrolling said discharge in prov for the percolat controlling the liqui portion to the liquid supply.

2. A percolator having a container adapted for ercolation of liquid therethrough, means or supplying a hquid, a receptacle for the percolated liquid, and means for controlling said liquid supply in proportion to the supply of percolated liquid in said receptacle.

3. A percolator havin a container adapted for percolation of liquid therethrough, means for supplying a liquid, and means or *repouring' percolated liquid through said container, said repour mechanism being operated by said liquid supply.

4. A percolator havin a container adapted for ercolation of liquid therethrough,

means or supplying a hquid, a receptacle for the ercolated liquid, means for controlling said liquid supply in accordance with the su ply of percolated liquid in said receptac e, and means for repouring perco-. lated liquid from said receptacle through .7

said container, said repour mechanism being operated by said liquid supply.

percolator liavi a container adapted for ercolation of llquid therethrough, means or suppl ing a'hquid, a receptacle liquid, and means for controlling said liquid supply and for controlling the discharge of material into said container, in proportion to the supply of percolated liquid in said receptacle 6. A percolator havin a container adapted for ercolation of hquid therethrough, means or sup lying a hquid, a receptacle for the perco ated liquid, a conduit discharging into said container and communicating with said recelptacle, and means for trolling the discharge of material into said container, in accordance with the supply of percolated liquid in said receptacle.

7. A perco ator having a container adapted for percolation of liquid therethrough, a

hopper for material adapted to be discharged into said container, a valve adapted to open and close direct communication between said hopper and said container, means for adjusting the range of opening movement of said valve, an said valve. a

,8. A percolator having a container adapted for rcolation of 'hquid therethrough, means ib r discharging material into said container, a valvular control for said dismeans for operating "charge, an annulus for passage of liquid supply and for con-.

therethrough and. discharge of said liquid into said container, and a rotatable memher having an impingement element in said annulus for rotation of said member by the flow of liquid through said annulus, said rotatable member having means adapted to to actuate said operating means so as to close the valve when the percolated .a predetermined high level.

10. A percolator having a container adapted for percolation of liquid therethrough, means for supplying a liquid, means for discharging material into said container, means for controlling said discharge in proportion to the liquid supply,

fluid reaches and means for adjusting said controlled discharge.

11. A giercolator havin a container adapted or percolation 0 liquid therethrough, an annulus for passage of liquid therethrough and discharge of said liquid 0 I into said container, a rotatable member having an impingement element, in said annulus for rotation of said member by the flow of liquid through said annulus, a conduit communicatingwith the percolated liquid and discharging into said container, an annulus a container adaptin said conduit, and a pump element carried by said rotatable member and movable in said annulus for drawing percolated liquid through said conduit.

12. A percolator including a container adapted for percolation of liquid therethrough and having an open top and a guard received in said open top adjacent the .rim.

thereof and forming a vcentral opening for discharge into said container, sai container being adapted to'receive a dry material and adapted for. discharge of a liquid into the same through said central openin for percolation of said liquid through sai dry ma terial, the said guard preventing splashing of said liquid from said container.

13. A fercolator havin a container adapted or percolation 0 means forcontrollingdisc arge of material into said container in proportion to the li uid'su pl and means forrepouring perco ated liquid through said container, said repour mechanism being operated bysaid liquid supply. Y

liquid therej through, means for sup lying' a liquid, '126 14. A percolator havin a 'lluid supplyand means operated by sai fluid supply for controlling discharge of material into said percolator.

.15. A ercolator having a container adapted or percolation of liquid thereadapted for percolation of liquid therethrough, means for sup lying a liquid, a receptacle tor the perco ated liquid, and a float in said receptacle controlling said liquid supply.

18. A percolat/or having a container adapted for percolation of liquid therethrough, a piston, a liquid supply operating said piston and discharging into said container, means actuated by said piston for controlling the discharge-0f material into said container, and a pump adapted to repour the percolated liquidthrough said container, said pumpbeing operated by said piston. v

19. A percolator having a container adapted for percolation of liquid therethrough, a conduit for a liquid discharging into said container, a piston in said conduit actuated by the flow of liquid therethrough,

nsoaeoe means actuated by said piston i211 controlling the discharge of material in said container, a receptacle for the percola liquid, a pump adapted to repour percolated liquid from said receptacle into said container, said ump being operated by said piston, and a oat in said receptacle controlling said liquid supply, V

20. A percolator having a container adapted for percolation of liquid therethrough, a receptacle for the percolated liquid, a conduit for a liquid connected to a source of supply distinct from said receptacle and discharging into said container, and a heating means adapted to heat both said conduit and saidreceptacle.

21. A percolator having a container adapted for percolation of a liquid therethrough, a conduit for a liquid supply discharging into said container, a receptacle for the percolated liquid, means for controlling said liquid supply in proportion to the supply of percolated liquid in said receptacle, means for heating said conduit, and

meansfor controlling said heating means by a said liquid supply. a

22. The combination of a rece tacle for a liquid, a conduit for said liqui communicating With said receptacle, a normally closed valve in said conduit, an operating member connected thereto for opening said valve, and a float in said receptacle normally disengaged from said operating member and adapted to engage the same at a predetermined lovv liquid level in said receptacle for actuating said operating member and opening said valve, 1

In testimony whereof l have sied my name to this specification.

ALFRED N; WVHJITE.

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